Lexus LC 500 - How to Initialize the Tire Pressure Warning System; Initializing the Tire Pressure Warning System; When Replacing the Tires and Wheels

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6-3. Do-it-yourself maintenance
■ When replacing the tires and wheels
If the ID code of the tire pressure warning
valve and transmitter is not registered, the
tire pressure warning system will not work
properly. After driving for about 10 minutes,
the tire pressure warning light blinks for 1
minute and stays on to indicate a system
malfunction.
■ The tire pressure warning system
must be initialized in the following
circumstances:
 When rotating the tires.
 When the tire inflation pressure is
changed when changing traveling
speed.
 When the tire inflation pressure is
changed such as when changing tire
size. (When there are multiple spec-
ified pressures)
 After registering the ID codes.
(P.354)
When the tire pressure warning system
is initialized, the current tire inflation
pressure is set as the benchmark pres-
sure.
■ How to initialize the tire pressure
warning system
1 Park the vehicle in a safe place and
turn the engine switch <power
switch> off.
Initialization cannot be performed while
the vehicle is moving.
2 Adjust the tire inflation pressure to
the specified cold tire inflation pres-
sure level.
Make sure to adjust the tire pressure to the
specified cold tire inflation pressure level.
The tire pressure warning system will oper-
ate based on this pressure level.
3 Turn the engine switch <power
switch> to IGNITION ON mode
<ON mode>.
4 Press or of the meter con-
trol switches and select .
5 Press or of the meter con-
trol switches and select “Vehicle
Settings”, and then press “OK”.
6 Press or of the meter con-
trol switches and select “TPWS
SET”, and then press “OK”.
7 Press or of the meter con-
trol switches and select “Set tire
pressure”, and then press and hold
“OK” until the tire pressure warning
light starts blinking.
NOTICE
■ Repairing or replacing tires, wheels,
tire pressure warning valves, trans-
mitters and tire valve caps
● When removing or fitting the wheels,
tires or the tire pressure warning
valves and transmitters, contact your
Lexus dealer as the tire pressure warn-
ing valves and transmitters may be
damaged if not handled correctly.
● Make sure to install the tire valve caps.
If the tire valve caps are not installed,
water could enter the tire pressure
warning valves and the tire pressure
warning valves could be bound.
● When replacing tire valve caps, do not
use tire valve caps other than those
specified. The cap may become stuck.
Initializing the tire pressure
warning system